PA law requires the tires to be covered by the flares.........and even though your jeep may not be registered in PA, they have been known to wait outside the Jamboree area (State Troopers) and pull jeeps over and ticket them. They will also check to make sure your trailer is registered and inspected.....brakes etc........and that you're not exceeding your GVWR as indicated on your registration, not what's on your door tag but what you "paid" to register the vehicle as. In PA you can have a truck capable of being registered at 9900lbs but register it at 6800 (or something like that anyway) in order to save on registration fees.